I found this picture of a blastocyst implanting on Tumblr, and I'm going to try to use it to help me visualize my embryos implanting when I transfer. I thought maybe others here might be interested.
Note: I think the picture is beautiful, but if you feel like you might find the image disturbing, please don't click. I'm not sure what the degree of magnification is but the whole thing looks almost like a flower to me.
It does look kinda like a flower.